C.1. Introductory concepts p.18-- C.2. Signals convey intelligence p.38-- C.3. Quality of service and telecommunication impairments p.53-- C.4. Transmission and switching: Cornerstones of a network p.87-- C.5. Transmissión aspects of voice telephony p.105-- C.6. Digital Networks p.146-- C.7.Signaling p.167-- C.8. Local and Long-distance Networks p.194-- C.9. Concepts in transmission Transport p.248-- C.10. Data communications p.289-- C.11. Enterprise Networks I: Local Area Networks p.312-- C.12. Enterprise Networks II: Wide Area Networks p.338-- C.13. Metropolitan area networks p.360-- C.14. CCITT Aignaling system No 7 p.385-- C.15. Voice - Over Packets in a Packet Network p. 401-- C.16. Television Transmission p.429-- C.17. Community Antenna Televisión ( Cable Tekevisión) p.455-- C.18 Cellular and PCS radio Systems p.486-- C.19. Advanced Broadband digital transport formats p.509-- C.20. Asynchronous Transfer Mode p.538-- C.21. Network Management